We went in 2009 for the last couple days of January and the first few days of February. Florida was having record cold temps at the time, lows in the 20s and highs in the 40s. When we had left, the forecast was for warm weather, so that's what we packed, but by the time we got down there via a 2-day road trip, the forecast had changed to be much colder and we all had only brought 1 sweatshirt and 1 pair of jeans each. I would suggest packing for an array of weather, despite what the forecast says the day you leave for your trip.